Strom



plunger 21.l shown a block slides in bore 8 in the plunger, and is pressed downwardly byra. spring') that.V engages a, plug l()V in the bore.V The bore has a shoulder 11, engaging the enlarged extremity ofthe block t'o. limit the downward movementwhen free.

VThe lower end of the bloei; has a. pari: spheri` ca cavity curved to iii.- tlie heard, and ine block is preferably beveied on its two iateral sides; It will'he understood that this block engages only the upper portion ofthe head, that is, above the Vportionengaged bj' the saws, near the base of the head on the strip.

`From this construction it will be understood that each time the plunger descends the'saws willnioveinwardly and'cut slots in the opposite sides or any article placed therebetween, such as the heads 0n the strips..V

nnen the plunger descends the cavity 12 in the block will iirst engage the head to cenair of. saws on st-a-tionarv arbors with ehe heads on -he strip drawn through or between the saws. This produced'a strain on e the strip and the head, causing bending and distortion of the strip, and also resulted in unequai slots being formed. The present invention obviates this diiculty, by having` the strip and head stationary and held firmly in a. ixed position, while the saws are brough. up to engage the head and then caused to recede. i

Having thus described our invention, what, we claim is l. The combination with a bed adapted to support an article, of a pair of carriers mounted to reciprocate on the bed on opposite sidesof the article., a circular saw on each carrier, ni'eans for reciprocating the carriers io bring the saws to engage the avrticle on Aopposite sides, including vieldable inea-ns for -nioving the carrier in one direction, and means for continuously rotating the saws during such movementl of the carriers.

2. The combination with a bed adapted bo support an article, or' a pair or" carriers mounted to reciprocate on the bed on opposite sides of the article, circular saw on each carrier, means for sliding the carriers to bring the. saws to engage the article on opposite sides, a. driving shari; extending across the bed, a miter gear connected With' each cie on opposie sides, a di saw arbor, a pair of miter gears siidabiy tween the gears on the shaft for siiding tile carrier {uva}7 from the articles. Y

3. The combination with 'a ibed adapted to Support. an article, of a pair o carriers inouned to reciprocate on the bed on ogpo- 'site or' he'article, a. circui eacii carrier, means for advancii tiie riers to bring the saws to engagoiie ai iextending across the bed, a. inner gear connected with each 'saw arbor, a pair or nnter rs siidabiy spiined on said sha-ft and eng'- said saw genis respectivey, and" a. err pr-ing on the snafi. for reracting the carr ers "einen advanced. Y

ars ni'. 1,1 1b man a. )unen maenne, ris com in i fion with a bed 'adapted to support an article,

and a plunger nioiable to and rrore the neon,

or a Vpair or' 'carriers mounted to reciproca-ie on the bed on opposite sides of the aricie, a circular saw; on eachV cri-Tier, cani arms on the plunger arranged to reciprocaie' tire can riers to bringA the saws io engage opposite sides or" the article, and a driving .siia-t. on the. bed arranger-lic rotate the saws during said Inovenient or the carriers. A

.in a button machine, Vthe combination with a 'bed adapted "to support. an article, and a pinnger n1 fable to and from the bed, or' a pair oi: carriers mounted o reciprocate on the bed on opposite sides or the article, a Vcircular saw on each carrier, cani arms on the plunger arranged ro advance the carriers to bring ehe saws to engage opposite sides of the article, a driving' shafton the bed arranged to rotaie the saws duringsaid movement of the carriers, and a coil spring on the shaft to separate the carrieis on retraction or" the plunger.

6. in a button machine, he combination with a bed adapted to support an artieie, and a plunger movable to and from he bed, of a pair of carriers mounted io reciprocate ou the bed on opposite sides of the article, a circular saw on each carrier, a driving sha-ft extending across the bed, a niiter gear connected with each saw arbor. a pair of init-er gears slidably spline-d on said shaft. and engaging said saw `gears respectively, a coil spring on the shaft arranged to separate che carriers u' ien advanced, and cam arms on the -plunger arranged to engage the car 1iers 'respectively ro advance the carriers io cause each carrier, means for reciprocating the Vcarriers to bring the saws to engage a head 'onthe strip on opposite sides to cut slots in the head, means for rotating the saws during' the movement of the carriers, and a block on the plunger arranged to engage the head during the operation thereon by the SlVUS.

9. In a button machine, the comhine'ion with a. bed adapted to support a' strip having heads, and aV plunger movable toward and from 1ihe bed. of a pair of carriers mounted to reciprocate on the bed on op posite sides of 'the strip, a circular saw 0n each carrier, means for reciprocznsing the carriers io bring'the saws to engage a head en the strip on opposite sides to cut slots in `the head, means for rotatingthe saws during the movement of the carriers, and a lblock on the plunger arranged to engage the and Afrom the hed of a, pair of Carriers mounted to freely reciprocate on the bed on opposite sides of the stripye circula-r saw on each carrier, means controlled by the plunger for reciprocating the carriers to bring the saws to engage a head on the strip on opposite sides to'cut slots in Vthe head, and means for rotating the saws during the increment or(l the carriers.

l1. na button machine, the combination with e. bed adaped to support a strip having heads, and a `plunger movable toward and from the bed, of e' pair of carriers mounted to' freelyy reciprocate on the hed on opposite sides of the srip, a circular saw on each carrier` means eonneeed with the plunger for advancingV the carriers to bring the saws to engage. a heed on the Strip on opposite sides to cut slots in the hea-d, means for rotating the saws during' the movement of the carriers, and a spring to retract the carriers when the plunger is retracecl. Y

@SCAR XM( SODERSTRM. lARR-EN FUHRVNN. 

